Bag-turning machine



M. ANDERSON.

BAG TURNING MACHINE.

APPLICATION man NOV- 30. l9l5.

1,320,961 Patented Nov. 4, 1919;

2 SHEETS-SHEET l.

M. ANDERSON.

BAG TURNING MACHINE.

APPLICATION FILED Nov. 30. 1915.

1 ,320, 96 1 Patented Nov. 4, 1919.

I 2 SHEET$-SHEET 2' if 9 j 3 Jim 7 4 4 4 MAGNUS ANDERSON, OF ATLANTA, GEORGIA.

\ BAG-TURNING MACHINE.

Specification of Letters Patent.

Patented Nov. 4, 1919.

Application filed November 30, 1915. Serial No. 64,258.

To all whom it may cOnceWL:

Be it known that I, MAGNUS ANDERSON, a citizen of the United States, residing at Atlanta, in the county of Fulton and State of Georgia, have invented certain new and use ful Improvements in Bag- Turning Machines, of which the following is a specification.

This invention relates to the class of weaving, and more specifically to improvements in bag-turning machines.

The object of my invention, is to provide a bag turning machine that may be operated at great speed and whereby a large number of bags may be turned ina relatively short space of time, the machine automatically laying the turned bags inneat piles, and this being accomplished without tearing or mutilating the bags.

Afurther object of my invention is to provide a machine that will be relatively simple in construction and operation in that it will have a minimum of working parts, which will tend to durability as well as economy in manufacturing cost and upkeep.

Other objects of this invention not at this time more particularly enumerated, will be clearly understood from the detailed description and drawings forming a part of.

this specification.

Furthermore, this invention consists in the novel arrangement and combination of parts more particularly described in the following specification and embodied in the claims appended hereunto and forming a part of this application.

Referring now to the drawings, which are merely illustrative of my invention:

Figure 1 is an isometric view of my machine.

Fig. 2 is a detail central longitudinal sectional view of the turning mechanism thereof.

Fig. 3 is a detail transverse sectional view taken on the line 33 of Fig. 2.

Fig. 4 is a detail top plan view of the valve unassembled.

Fig. 5 is a fragmentary front plan view showing the tumbler actuating means.

Fig. 6 is a detail elevation of the disk 23 and the tumbler with its adjunct parts.

Referring further to the drawings, wherein similar reference characters designate similar parts throughout the respective views, my invention generally consists of an expansible mouth piece actuated by a novelcam movement, an extensible bag chamber, cam actuated means for applying an air suction to the bag chamber, intermittently actuated means for gripping the turned bags, and revoluble means for discharging the turned bags.

More specifically, my invention consists of a supporting frame 1 upon which is mounted a plurality of adjustable supports 2 adapted to maintain a feed table 3 in the proper inclined position with respect to the turning mechanism of the machine. An inclined receiving table 4 coextensive in width with the inner faces of the sides of said supporting frame, is adapted to slide therebetween in a position to receive the discharged bags as they are deposited successively from the machine.

A substantially rectangular casing 5 is mounted upon said frame, the rear end thereof being adjacent the lower end of said feed table, and the forwardend terminating in an upturned rounded inclosed portion 6. A suction pipe formed with a damper 8 therein is mounted at one end upon one end of said upturned portion 6, said suction pipe leading to a suction fan, not shown. A rectangular air box 9 is telescopically mounted in said casing adjacent the rear end thereof. A feed mouth piece 10, formed of telescoping sections, is mounted upon plates 10 slidably engaged adjacent the front face of said air box 9 by parallel guide carriers 10. An opening 11 is provided through the bottom of said casing 5 near the upturned end thereof.

A valve 12, triangular-shaped in cross section, coextensive in length with the upturned end of said casing, is mounted upon a shaft 18 within said upturned end, said valve being adapted to intermittently open and close the opening 11 in said casing in a manner and for the purpose hereinafter described. A plurality of leaf spring fingers 14 are rigidly mounted upon said shaft 13, oppositely disposed with respect to said Valve.

A revolving shaft 15 is mounted upon said frame 1 beneath the upturned end of said casing 5, said shaft being rotated by a gear 16 meshing with a pinion l7 and propelled by a drive pulley 18 mounted upon said frame adjacent said gear. A cam 19 is mounted upon the outer face of said gear 16,

said cam being adapted to actuate a lever arm 20 operatively connected therewith at one end and connected with the valve shaft 13 at the other end thereof. A cam 21 is mounted upon the other end of said shaft, to which is operatively connected one end of a lever arm 22, the other end of said arm being connected to the damper 8 which is intermittently opened and closed by said cam and lever.

A plurality of bag receiving disks 23 are spaced apart upon the shaft 15 intermediate its ends, said disk being formed with concave cut out portions 2% and 24 respectively in the peripheral edges thereof, the cut out portion 2% serving to receive a portion of the bag engaged by the gripping members hereinafter fully described and also permitting the arcuate movement of the valve 12 when closing. The cut out portions 24: function to permit the valve 12 to arcuately move on the openin thereof. One of said disks, that is to say the disk designated 23 is formed with a cam face 25 thereon. A rod 26 is mounted through said disk near the edge thereof, a plurality of bag gripping members 27 being fixedly mounted upon said rod with their pointed ends directed reversely to the direction of rotation of the disks 23, and a trip tumbler 28 being secured to one end of said rod. A pin 40 is secured to one end of the disks 23 as best shown in Fig. 5 of the drawings, said pin having an aperture in the enlarged free end thereof. A rod 41 is pivotally connected to the trip tumbler 28 and has its opposite end slidably mounted in the opening or aperture provided in the enlarged free end of the pin 10. A coiled spring 29 is mounted upon the rod 41 with one end held fixed, while its opposite end plays upon the enlarged free end of the pin 40 and this spring serves to retain the trip tumbler 28 in a position at either side of its axis of movement the same will assume upon rotation of the disk 23 and the obvious striking of the abutments and 31. The contact abutment 30 is mounted upon said supporting frame adjacent the upper edges of said disks and the contact abutment 31 is mounted upon said frame and is spaced inwardly from the lower edges of said disks, said trip tumbler being adapted to engage with said abutments during the rotation of the shaft 15 as and for the purpose hereinafter described.

A shaft 32 is mounted beneath the top of said frame and centrally thereof, the forward end of said shaft being adjacent the rear edge of disk 23*. An arm 33 is mounted at one end upon the forward end of said shaft 32, a contact roller 34: being mounted upon the free end of said rod and at right angles to arm 33. Said roller is adapted to contact with the cam face 25 of the disk 23 during the revolution of said disk. A coil spring 35 is mounted upon said shaft 32 and sustains the roller in contact with the cam 25. A lever disk 36 is mounted upon said shaft at a point below the telescoping feed mouth 10. Levers are mounted at one end thereof to the sliding plate 10, and at the other end thereof to connecting rods 38 cccentrically mounted at oppositely disposed points upon said lever disk 36.

From the construction as described, it is obvious that as the cam face 25 of the disk 23 contacts with the roller 34, the shaft 32 will operate the lever disk 36 to push the levers 37 outwardly with respect to said disk, thereby distending the telescoping sections of the feed mouth piece 10, the said sections being normally in contracted position. When contracted, the mouth of a bag is placed around said mouth piece, and as the aforesaid cam face 25 of the disk 23 0011- S tracts with the roller 34, the said mouth piece and air chamber will be distended, thereby engaging the mouth of the bag.

The bag being engaged with the said mouth piece, the valve 12 is moved clownwardly into the cut-out portion 2A and the fingers 141- are moiied upwardly by the cam 19, the valve in this position closes the opening 11 in the casing and causes a substantially air tight compartment of the casing 5. Following in sequence of operation, the damper 8 is opened by the cam 21 whereupon the air suction from the pipe 7 operates through the casing, air box, and mouth piece to turn the bag engaged with said mouth piece. The instant the bag is turned, the damper 8 closes then the valve 12 moves upwardly and the spring fingers 14: move downwardly to press the closed end of the turned bag over the edge of the opening 11 in the casing. In this position the bag, now completely turned, is ready to be discharged from the machine.

Fig. 2 illustrates the relative position of the bag gripping members 27 immediately before the bag is engaged, and Fig. 1 shows their position upon engagement with the bag. As the disks 23 revolve, and the TO 26, uponwhich the gripping members are mounted, passes the abutment 30 upon the upper portion of the frame 1, one extremity of the tumbler 28 will strike said abutmentin such manner as to throw the pointed ends of the gripping members inwardly, thus gripping the closed end of the turned bag as it projects over the edge of the opening 11, and pulling said bag through said opening so that the free end of the bag will lay across the peripheries of the revolving disks 23. By the time the said disks have made a half revolution, thebag has been completely withdrawn and must be released from the gripping members. This is accomplished by means of the abutment 31 adjacent the bottom edge of the disks, which abutment will engage the inwardly disposed extremity of the tumbler 28, that is, the end of the same which is arranged inwardly from the margins of disks, thus imparting pivotal movement to said tumbler and reversing the positioning thereof inorder that the same will be again operated to grip a sack when it is rengaged with the abutment 30.

The air box 9 is telescopically mounted within the casing 5 so that it may be adjusted for various sizes of bags. If the bags being turned are relatively long, said air box may be moved outwardly from the end of the casing. Likewise the feed table 3 is adjustable upon the supports 2 so that the lower, or forward end thereof will always be in a correct position with respect to the feed mouth piece 1.0. As has been heretofore stated the series of cut out portions 24 avoid any interference with the arcuate movement of the valve 12 on the closing thereof and the rotation of the disks 23 also serve as a recess for a portion of the bag when extended through the opening 11 to permit the gripping fingers 27 to engage the bag and secure the same upon the bag receiving disks 23, while the series of cut out portions 24: only serve to avoid interference with the valve 12 on opening movement of the same.

The utility, adaptability, and advantages of my improved form of bag turning machine being obvious, it is unnecessary to further enlarge upon the same herein.

Having now described and pointed out the new and useful features of my invention, I do not limit myself to the shape of certain parts where the shape is not essential, nor do I restrict myself to the exact details of construction shown and described, but mean and intend to claim all equivalents and variations thereof, not departing in principle from my invention, and falling within the purview of the appended claims.

What I claim as my invention and desire to secure by Letters Patent is:

l. A bag turning machine consisting of a supporting stand, an adjustable feed table mounted upon said stand, an air box mounted upon said stand, adjustable bag-engaging means mounted upon said air box, means connected with said air box for applying a suction thereto, said air box formed with an opening through thebottom near one end thereof, a valve mounted in said box and adapted to register with said opening to intermittently open and close the same, means mounted upon said valve adapted to press a turned bag against the bottom of said box when said valve is open, and revoluble gripping members mounted on said frame adapted to engage with the end of the bacr projecting through said opening to discharge the same from said box.

2. In a device of the class described, in-

eluding, a supporting frame, an adjustable feed table, an inclined receiving table, a casing mounted upon said frame having one end terminating in a rounded upturned inclosed portion provided with a longitudinal slot in the underside thereof, a valve for opening and closing said slot, a revolving shaft mounted on said frame, a plurality of disks mounted on said shaft having concave cut-out portions thereon to permit the clo. ing of the longitudinal slot by means of the valve, and means mounted on saiddisks for withdrawing the sacks through said longitudinal slot and depositing the same on the inclined table.

3. In a device of the class described, including, a supporting frame, an adjustable feed table, an inclined receiving table, a casing mounted upon said frame having one end terminating in a rounded upturned inclosed portion provided with a longitudinal slot in the underside thereof, a valve for opening and closing said slot, a revolving shaft mounted on said frame, a plurality of disks mounted on said shaft having concave cutout portions thereon to permit the closing of the longitudinal slot by means of the valve, a rod extending through said disks adjacent the edges thereof, and a plurality of bag gripping members fixedly mounted upon said rod to withdraw the sacks through said longitudinal slot and deposit the same on the inclined table.

i. In a device of the class described, including, a supporting frame, an adjustable feed table, an inclined receiving table, a casing mounted upon said frame having one end terminating in a rounded upturned inclosed portion provided with a longitudinal slot in the underside thereof, a valve, a revolving shaft mounted on said frame, a plurality of disks mounted on said shaft having concave cut-out portions thereon to permit the closing of the longitudinal slot, a rod member extending through said disks adj acent the edges thereof, a plurality of bag gripping members fixedly mounted upon said rod, a gear mounted on the revolving shaft, a cam member mounted upon the outer side of said gear, a lever arm having one end connected to the cam member, the opposite end being connected to the valve to actuate the same, and means for actuating said gear wheel.

5. In a device of the class described, including, a supporting frame, an adjustable feed table, an inclined receiving table, a casing mounted upon said frame having one end terminating in a rounded upturned inclosed portion provided with a longitudinal slot in the underside thereof, a valve for opening and closing said slot, a revolving shaft mounted on said frame, a plurality disks mounted on said shaft having concave cut-out portions thereon, a rod extending through said disks, a plurality of bag gripping elements rlgidly secured to said rod, a telescopically mounted air box formed Within said casing, a feed mouthpiece formed of telescopic sections, a pair of plate members slidably mounted on the end of said casing, one of said disk members having a cam face thereon, a shaft 1nem ber mounted beneath the top of said frame and centrally thereof, the forward end of said shaft being adjacent the rear end of the last said disk, a rod member mounted on one end of the last mentioned shaft, a contact roller rotatably mounted on the end of said rod and at right angles thereto, said roller being adapted to contact With the cam face, a lever disk mounted upon last said shaft at a point below the telescoping feed mouth, levers mounted adjacent one end of said a disk and connected to the sliding plate to op- 20 erate the same.

In testimony whereof I afiix my signature hereto.

MAGNUS ANDERSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

